Divided cylinder for engines.



K. STEI'NBECKER.

DIVIDED CYLfNDER FOR ENGINES. APPLICATION FILED AUG.7.1912.

1,15K3M, Rimmed (M119, 1915.

\Nitmesses: invents? W t gheimbgwgr and the lowerportion 5 barren snares Pannier caries.

KARL STEINBECKER, 0F CHARLOTTENBURG, GERMANY, ASSIGNOR T0 GENERAL ELECTRIC COMPANY. A CORIJRATION OF NEW YORK.

DIVIDED CYLINDER FOR ENGINS Specification of Letters Patent.

* Patented oat. re. ota.

Application filed August .7, 1912. Serial No. 713,748.

T 0 all whom it may concern Be it known that I, I\ARL S'rnixurcusn.

a subject of the King of Prussia, residing at'Charlottenburg, Germany, have invented certain new and useful Improvements in portion of which constitutes acombustion.

chamber. In the engine I have illustrated in the accompanying drawing, the inlet and outlet ports arelocated respectively below and above this combustion chamber, and the entire cylinder is jacket of some kind. But the jacket is not essential to the upper portion of the cylinder above the outlet ports, norv to the lower portion below'the inlet ports; The special feature of novelty in the present case is the mode of constructing the ports, which are formed by a fissure extending around the inner cylinder wall, sothat said cylinder wall is divided into separate portions, suitably supported with relation to each other so as to leave a circumferential opening of a size proper to constitute the port or ports above referred to. I b

The drawing shows a longitudinal section of a cylinder and its frame. embodying one form of my invention, in which only the outlet ports are made in accordance with my invention.

The frame is preferably a box-like structure 1 supported on columns 2 and having cylindrical openings in its top and bottom. A' jacket 3 is cast integral with said box, concentric with said openings and enough larger to leave a space 4 between said jacket of the cylinder; said space being utilized for the circulation of a cooling medium. In this portion of the cylinder may be formed the inlet ports 6, which register with a plurality of nozzles 7 integral with the jacket 3 and making a fluidtight joint with the exterior of said cylinder.

The combustion chamber 8 is provided with inlet passages for the supply of fuel. and these register with opening 9 in the walls of a cooling jacket 10 surrounding said combustion. chamber and preferably provided with a cooling .walls of said cylinder. While I have cast integral with the cylinders. The bottom of this jacket rests upon the frame 1. and thus supports the cylinder; said jacket being preferably in communication with the acket 3,as shown.

The upper section 11 of the cylinder is preferably provided with an integral water acket 12 and with a downwardly projecting portion 13 which fits snugly into the upper end of the jacket 10, which extends above the upper end of the combustion chamber 8. At the lower end of this portion 13 and at" the upper end of the lower section 5 there. are formed inter-meshing teeth 11f, which, however, do not touch, but

leave between them a zigzag fissure. I

prefer to surround this fissure with an annular chamber 15, provided at one side with an escape port 16, so that the exhaust'gases can pass freely from the combustion chamber through the fissure and the annular chamber and the escape port to the atmos phere. v

It is evident that various modifications and developments of this invention may be made without departing from the scope of my general idea, that of making the cylinder in two or more sections with fissures between the adjacent ends of said sections forming ports for the passage of gases through the shown the invention applied to an uprightengine, yet it is evident that it is applicable to horizontal engines as well. It will be observed that the cylinder is supported at one point only, leaving it free to expand longitudinally without setting up any injurious strains.

There are certain reasons why the zigzag fissure is valuable in a structure of this kind. li'hen a cylinder in which a piston is to reciprocate is composed of two sections meeting in a butt joint it is very difiicult to get the walls of the two sections exactly in line at every point and so smooth that the piston will not meet with some slight obstruction here or there when it passes the joint. -if the sections do not touch, but are trouble is still greater. But by making'the fissure between them irregular, zigzag, or

, supported independently of each other, this being oblique to only a few points, the remainder of said edge the advancing end of the piston, so. that even if the second section is slightly out of line it will be readily entered by the piston.

Another advantage of the zigzag fissure is that the exhaust takes place less abruptly than when itoccurs through a long straight slot or a plurality of smaller ones all in line.

In accordance with the provisions of the patent statutes, 1 have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus' shown is only illustrative, and that the invention can be carried out by other means.

What I 'claim as new and desire to secure by Letters Patent of the United States, is

1 I l. A cylinder for an internal combustion engine made in two sections in axial alinement, with thelr ad acent ends formed with intermeshing teeth which are out of contact,

so as to leave a continuous zigzag fissure between said sections, to serve as a port for the passage of gases. 2. An internal combustion engine cylinder having its inner wall which is traversed by the piston made in sections arranged adj acent to each other with their adjacent ends provided with intermeshing teethforming a zigzag fissure to serve as a port, said cyllnder comprising a part having 1n it an .annular passage about the inner wall into which the port opens and the other section first-mentioned 1n the receiver extending into said portion and being se- A cured thereto.

3. In an internal by at its upper end, and the other of said parts being mounted in said jacket and supportedthereby.

4. In an internal combustion engine, the combination of a receiver having openings in its opposite walls, a cylinder; having its inner wall in two parts one of which is mounted in the openings aforesaid, said cylinder comprising a jacket surrounding a portion of the Inner Wall outside of the receiver and mounted on one of the receiver walls, and the other of'saidparts being mounted in said jacket and supported thereby, said receiver having a wall surrounding the first-mentioned part to serve as a jacket for cooling fluid thereabout, and said last mentioned jacket communicating with the jacket through the opening wall on. which the latter is mounted. f 5

.In Witness whereof, I have hereunto set my hand this eighteenth day of July, 1912.

KARL sTEINBnoKE'R.

Witnesses:-

HENRY HAsPnR, -WOLDEMAR HAUPT. 

